In this paper we considerLp approximation by integer trans lates of a nite set of functions r which are not nec essarily compactly supported but have a suitable decay rate Assuming that the function vector r is re nable necessary and su cient conditions for the re nement mask are derived In particular if algebraic polynomials can be exactly reproduced by integer translates of then a factorizati...

The intense observations of ocean surface vector winds by spacebased scatterometers in the past decade have confirmed the rich spatial and temporal scales in ocean surface wind fields, and have improved our understanding of their complicated interactions. Studies based on these data underscore that the objectives of the National Aeronautics and Space Administration (NASA) in monitoring, underst...

This paper presents the concept of mobile user-provided services small services that users can create and provide on the go from their mobile terminals. It addresses the technological challenges to apply this concept and describes an architectural approach to realize it. Ultimate personalization and access to the most relevant information are the main drivers for user-provided services, which h...

Introduction One of the key elements to improve the user experience on the Web is the enhancement of the user security, however not compromising the usability of the solutions. In that sense, the take-off of the mobile Internet, with users always carrying (in a way that was only equaled previously by keys, watches or wallets) a personal device, i.e., the mobile phone, equipped with a Subscriber...

This discussion is both cautionary and hopeful, for it addresses the remaining ability of those persons with dementia as well as the effect of such lack of recognition, upon the care delivered to all vulnerable older adults. A series of vignettes are presented that reach across time, each describes the nature of such remaining ability in dementia. The vignettes present a nurses’ “remembered” ex...

This paper has benefited from comments by Jacques Van der Gaag and George Schieber. The authors also gratefully acknowledge financial support from the World Bank and the National Institute of Aging. The findings, interpretations, and conclusions expressed in this paper are entirely those of the authors. They do not necessarily represent the views of the World Bank, its Executive Directors, or t...

Forest resources represent many competing uses in society. The allocation of forest resources depends primarily on the society's value for each use. The problem with allocating forest resources among its different uses lies in differences in societal values across the globe for a single use, across uses and even within political boundaries. These differences in values held by societies across t...

This paper studies the equilibrium size of countries. Individuals in small countries have greater influence over the nature of political decision making while individuals in large countries have the advantage of more public goods and lower tax rates. The model implies that (i) there exists excessive incentives to separate, though this need not be the case for all sets of secession rules studied...

The advent of cheap and ubiquitous wireless access has introduced a number of new connectivity paradigms. This paper investigates one of them, user-provided connectivity or UPC. In contrast to traditional infrastructure-based connectivity, e.g., connectivity through the up-front build-out of expensive base-stations, UPC realizes connectivity organically as users join and expand its coverage. Th...